Evans has mentioned on here before how he thinks that any name that ends in a "-ley" sound is doomed to become feminine in the U.S. I made a blog post about how the new generation of adults in general seem to be more comfortable with gender-neutral names for their sons, and why I think that Evans's prediction about Riley is likely going to be only partly true (more popular for girls but not completely out for boys like he predicted):http://millennialkelly.blogspot.com/2010/02/riley-will-it-stay-unisex-or-not.html

(If you're commenting on this post remember it should be from a U.S. perspective; in the U.K., Australia, or even Canada for that matter, Riley is still more popular for boys.)